{"product_id":"stacool-roof-rack-mounting-brackets-4pcs-u-shaped-clamps-for-roof-boxes-universal-fit-to-3-35-crossbars-rust-resistant","title":"Stacool Roof Rack Mounting Brackets, 4PCS U-Shaped Clamps for Roof Boxes — Universal Fit to 3.35\" Crossbars, Rust-Resistant","description":"\u003cp\u003e\u003cstrong\u003eStacool 4PCS U-shaped roof rack mounting brackets are a complete universal kit to securely clamp roof boxes and cargo carriers to most roof racks using U-bolts, nuts, rubber washers and straps.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a simple, heavy-duty replacement or an upgrade to attach a roof box, cargo carrier or rooftop tent, this Stacool kit supplies four plate brackets, four U-bolts, eight nuts, rubber washers, two straps and a sealing sticker. The parts are sized to fit crossbars up to 3.35\" (85 mm) wide and 1.06\" (27 mm) thick; check your rack dimensions before ordering. Materials and finish are selected to resist weather and daily vibration so your load stays put on highway and backcountry drives.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these brackets keep a roof box from shifting on the road?\u003c\/h3\u003e\n\u003cp\u003eThe U-shaped clamps wrap under and around the roof rack crossbar, creating a solid mechanical grip that resists lateral and vertical movement. Combined with rubber washers and properly torqued nuts, the assembly transfers load forces to the rack instead of allowing slippage.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eU-bolt clamps cradle crossbars for positive hold.\u003c\/li\u003e\n  \u003cli\u003eRubber washers damp vibration and protect finishes.\u003c\/li\u003e\n  \u003cli\u003eLocking nuts secure torque and prevent loosening over time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these brackets fit my vehicle’s roof rack crossbars?\u003c\/h3\u003e\n\u003cp\u003eThey are designed for universal compatibility with most aftermarket and OEM crossbars, within the kit’s specified size limits. Measure your crossbar width and thickness—if your crossbar is ≤3.35\" wide and ≤1.06\" thick, these brackets will fit properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuits square, round and many aero-style crossbars within size range.\u003c\/li\u003e\n  \u003cli\u003eIncludes sealing stickers for hole protection on some installations.\u003c\/li\u003e\n  \u003cli\u003eTwo webbing straps add clamping redundancy and ease of use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable are the Stacool mounting brackets in outdoor conditions?\u003c\/h3\u003e\n\u003cp\u003eThe kit uses corrosion-resistant materials and a weather-tolerant finish to stand up to rain, sun and road salt. Components are engineered for repeated installation cycles and long-term use, making them suitable for frequent travelers and seasonal storage alike.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRust-resistant hardware extends service life.\u003c\/li\u003e\n  \u003cli\u003eRubber washers remain flexible in heat and cold.\u003c\/li\u003e\n  \u003cli\u003eStraps and plates withstand UV exposure and abrasion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat tools and steps are required for installation?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward with basic hand tools: a wrench for the nuts and a tape measure to confirm fit. The kit’s parts are pre-matched, so assembly follows a simple clamp-plate-U-bolt sequence and final torque to secure the load.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eYou’ll need a wrench or socket set for nuts.\u003c\/li\u003e\n  \u003cli\u003eMeasure crossbar dimensions before starting.\u003c\/li\u003e\n  \u003cli\u003eTighten nuts evenly and use straps for extra stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: drivers who own roof boxes, cargo carriers or rooftop tents and want an affordable, durable mounting solution that fits most crossbars. It’s ideal for weekend adventurers, families adding cargo space for trips, and anyone replacing worn or missing clamp hardware. If your rack measurements fall within the kit’s limits and you prefer simple, mechanical fastening over vehicle-specific mounts, the Stacool 4PCS U-shaped mounting bracket kit provides a practical, weather-resistant way to secure rooftop cargo.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What crossbar sizes do these brackets fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: They fit crossbars up to 3.35\" (85 mm) wide and 1.06\" (27 mm) thick; measure before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are tools included for installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No tools included; you only need basic wrenches or a socket set to tighten the nuts.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Stacool","offers":[{"title":"Default Title","offer_id":48084397752478,"sku":"B0D8Q7T9WH","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/stacool-front-packaging-clamp-kit.jpg?v=1785853714","url":"https:\/\/northtrailauto.ca\/products\/stacool-roof-rack-mounting-brackets-4pcs-u-shaped-clamps-for-roof-boxes-universal-fit-to-3-35-crossbars-rust-resistant","provider":"North Trail Auto","version":"1.0","type":"link"}